Energy-saving techniques, such as the implementation of efficient engineering equipment, play a crucial role in reducing energy consumption within buildings and facilitating of a transition towards a low-carbon energy future. In this context, this paper briefly introduces the principle of heat pumps, along with an examination of the diverse circumstances in which different categories of heat pumps can be effectively employed while analyzing energy efficiency, economic considerations, as well as environmental implications. The adoption of heat pumps has been widely recognized as a means of achieving energy savings in comparison to the installation of conventional boiler/chiller systems, resulting in evident environmental effectiveness and substantial reduction in emissions. This paper examines the performance of several heat pump systems under diverse climatic situations and presents illustrative instances of effective implementation. Heat pumps tend to have higher initial costs but low maintenance and long lifespan. This paper also examines the remaining challenges for the broad deployment of heat pumps. Costs, policy, scientific limitations, and market dynamics challenges exist, which could potentially obstacle. The paper also included the prospective trajectory of heat pumps, with a notable emphasis on the integration of solar energy as an emerging trend, with the inclusion of solar energy being highlighted as a prospective trend. This paper aims to enhance comprehension of the feasibility and economic soundness of heat pumps.
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Shuyi Guo (2024) studied this question.